WPF:Can-DataGridCell'；是否可通过多值转换器设置内容？

我有一个datagrid，它有几个静态和动态生成的列。动态添加的Columns细胞的背景图像通过多值转换器成功调整。现在我需要给这些单元格添加内容，而不仅仅是改变它们的背景。我希望为此目的使用多值转换器也能起作用，但事实并非如此。 在调试器中，多值转换器运行时，返回字符串，但单元格保持为空

请参阅代码，其中Backround设置起作用，但内容设置不起作用。除了gridCellBgConverter返回Brush和gridCellContentConverter返回string之外，它们本质上是相同的代码

<DataGrid DockPanel.Dock="Top" Name="main_dg" HorizontalAlignment="Stretch" HorizontalScrollBarVisibility="Hidden" Margin="3"
AutoGenerateColumns="False" SelectionMode="Single" SelectionUnit="Cell" 
SelectedCellsChanged="main_dg_SelectedCellsChanged" CanUserReorderColumns="False" 
CanUserAddRows="False" CellEditEnding="main_dg_CellEditEnding" KeyUp="main_dg_KeyUp" 
FontSize="14" FontWeight="Normal" FontStretch="Normal" SnapsToDevicePixels="True" TextOptions.TextFormattingMode="Display" RenderOptions.EdgeMode="Aliased">
<DataGrid.Resources>
    <Style x:Key="errorStyle" TargetType="{x:Type TextBox}">
        <Setter Property="Padding" Value="-2"/>
        <Style.Triggers>
            <Trigger Property="Validation.HasError" Value="True">
                <Setter Property="Background" Value="Red"/>
                <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</DataGrid.Resources>
    <DataGrid.CellStyle>
        <Style TargetType="DataGridCell">
            <Setter Property="Background">
                <Setter.Value>
                    <MultiBinding Converter="{StaticResource gridCellBgConverter}" UpdateSourceTrigger="PropertyChanged">
                        <MultiBinding.Bindings>
                            <Binding RelativeSource="{RelativeSource Self}"></Binding>
                            <Binding Path="." UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.SelectedStationIndex" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.TrainOnTrackElementId" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.LastStationCountDownChanged" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.SelectedStationDelay" UpdateSourceTrigger="PropertyChanged"></Binding>
                        </MultiBinding.Bindings>
                    </MultiBinding>
                </Setter.Value>
            </Setter>
            <Setter Property="Content">
                <Setter.Value>
                    <MultiBinding Converter="{StaticResource gridCellContentConverter}" UpdateSourceTrigger="PropertyChanged">
                        <MultiBinding.Bindings>
                            <Binding RelativeSource="{RelativeSource Self}"></Binding>
                            <Binding Path="." UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.SelectedStationIndex" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.TrainOnTrackElementId" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.LastStationCountDownChanged" UpdateSourceTrigger="PropertyChanged"></Binding>
                            <Binding Path="TrainToAnnounceViewModel.SelectedStationDelay" UpdateSourceTrigger="PropertyChanged"></Binding>
                        </MultiBinding.Bindings>
                    </MultiBinding>
                </Setter.Value>
            </Setter>                                            
        </Style>
    </DataGrid.CellStyle> 

我不得不使用

public object Convert(object[] values,
       Type targetType, object parameter,
       CultureInfo culture) {
          var textBlock = (TextBlock)values[0];
          var cell = (DataGridCell)((ContentPresenter)textBlock.TemplatedParent).TemplatedParent

用户可以访问原始小区。

---

我毫不怀疑有很多更好的方法可以做到这一点，但它似乎很有效：）

假设您的数据网格是只读的（不可编辑），可以按如下方式实现

（以下代码未经测试）

关于这种方法的警告是，在这种情况下，您会失去许多单元级功能，例如验证、编辑模式、背景色、鼠标悬停、选择颜色等

我仍然建议使用DataGridTemplate列和CellTemplate属性

public object Convert(object[] values,
       Type targetType, object parameter,
       CultureInfo culture) {
         var cell = (DataGridCell)values[0];

public object Convert(object[] values,
       Type targetType, object parameter,
       CultureInfo culture) {
          var textBlock = (TextBlock)values[0];
          var cell = (DataGridCell)((ContentPresenter)textBlock.TemplatedParent).TemplatedParent

      <Style TargetType="{x:Type DataGridCell}">
          <Setter Property="Template">
              <Setter.Value>
                  <ControlTemplate TargetType="{x:Type DataGridCell}">
                      <Border Background="Transparent" 
                    BorderBrush="{TemplateBinding BorderBrush}"  
                    BorderThickness="0" 
                    SnapsToDevicePixels="True">
                          <TextBlock>
                              <TextBlock.Text>
                                <!-- Your MultiBinding Here -->
                              </TextBlock.Text>
                          </TextBlock> 
                      </Border>
                  </ControlTemplate>
              </Setter.Value>
          </Setter>
      </Style>